Match multiple pattern from a file and copy matching files in a dir to new dir

Question

How to copy files from dir1 to dir2, matching pattern in a file1? for example:

file1:

T0_1
T0_2
T0_3

Dir1:

T0_1_xxx_xx
E1_1_xxx_xx
T0_2_xxx_xx
E1_2_xxx_xx
E1_3_xxx_xx
T0_2_xxx_xx

I want to copy T0_1_xxx_xx, T0_2_xxx_xx, T0_3_xxx_xx to new dir2. There are 124 names in file1, and 372 files in dir1.

Answer 1

Just iterate over the file:

while read prefix; do
    cp -- "$prefix"* new_dir_2/
done < file1

This will read each line of your file, saving it as $prefix and then will copy all files whose name starts with $prefix to new_dir_2. The -- after the cp is to tell cp that there are no more options and this ensures it will also work in the unlikely case where you have a file name starting with a -.